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首页> 外文期刊>Egyptian journal of petroleum >Evaluation of a novel cationic surfactant based on 2-(2 (dimethylamino)ethoxy)ethanol as a corrosion inhibitor for carbon steel 1018 in 1.0MHCl solution
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Evaluation of a novel cationic surfactant based on 2-(2 (dimethylamino)ethoxy)ethanol as a corrosion inhibitor for carbon steel 1018 in 1.0MHCl solution

机译：基于2-（2-（二甲基氨基）乙氧基）乙醇的新型阳离子表面活性剂在1.0MHCl溶液中作为缓蚀剂对碳钢1018的评价

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摘要

Corrosion inhibition of a novel cationic surfactant namely, N-(2-(2-hydroxyethoxy)ethyl)-N,N-dimethyldodecan-1-aminium bromide (HEDDB) was evaluated as a corrosion inhibitor for carbon steel in 1.0MHCl by electrochemical frequency modulation (EFM), potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and weight loss measurements. Results of Tafel polarization exhibit that the synthesized surfactant HEDDB behaves as mixed-type inhibitor. The effectiveness of temperature on the corrosion rate which evaluated by chemical technique (weight loss) was investigated and assessed. Langmuir’s adsorption isotherm was the preferable fitted isotherm. The results of weight loss clarified that the efficiency of the synthesized surfactant increases with raising both the concentration of the surfactant and the temperature. HEDDB effectiveness on the morphology of metal surface was monitored by Atomic Force Microscopy (AFM) and Scanning Electron Microscope (SEM) techniques. Quantum chemical technique has been employed to discuss the inhibition efficiency by effectiveness of molecular structure of the synthesized inhibitor. The various techniques which used in this research have inhibition efficiency (IE) with the same direction.
机译：通过电化学频率评估了新型阳离子表面活性剂即N-（2-（2-羟基乙氧基）乙基）-N，N-二甲基十二烷基-1-溴化铵（HEDDB）的腐蚀抑制剂作为碳钢的腐蚀抑制剂调制（EFM），电势极化，电化学阻抗谱（EIS）和重量损失测量。 Tafel极化的结果表明，合成的表面活性剂HEDDB具有混合型抑制剂的作用。研究并评估了温度对通过化学技术评估的腐蚀速率的有效性（失重）。 Langmuir的吸附等温线是最佳的拟合等温线。重量损失的结果表明，合成的表面活性剂的效率随着表面活性剂的浓度和温度的升高而增加。通过原子力显微镜（AFM）和扫描电子显微镜（SEM）技术监测HEDDB对金属表面形态的有效性。已经采用量子化学技术通过合成抑制剂的分子结构有效性来讨论抑制效率。在这项研究中使用的各种技术具有相同方向的抑制效率（IE）。

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